Answer:
320
Step-by-step explanation:
800 = 10
x = 4
800 x 4 = 10 x
3200= 10x
x = 320
1. 1 x 40
2. 1,40, 2,80, 3, 120, 4,160
3. ??? ( you should be able to figer it out)
4. 45 x 52
5. Chairs R U's
3
3÷2= 1.5
3÷5= 0.60
9÷10= 0.90
1.5+0.60+0.90= 3
18
81m + 27t